Hand fire-extinguisher



(No Model.)

A. W. PORTER. HAND FIRE EXTINGUISHBR.

Patented Aug. 4, 1885.

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ALONZO V. PORTER, OF NEYV YORK, N. Y., ASSIGNOR TO JAMES J. COOPER, OF PHILADELPHIA, PENNSYLVANIA.

HAND FlRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 323,528,6lated August 4,1885.

(No model.)

To all whom it may concern:

Be it known that I, ALoNzo WV. PORTER, a citizen of the United States, residing at New York, in the county of New York and State of NewYorlc, have invented certain new and useful Improvements in Hand Fire-Extinguishers, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to certain new and useful improvements in fire-extinguishers of that class designed to be held in the hand while discharging upon the fire a liquid consisting of chemical salts in solution having many times the extinguishing power of water.

The objects of my invention are, first, to reduce the cost of such apparatus to the minimum consistent with the highest degree of effectiveness and durability of the same; secondly, to provide an apparatus which is ready for immediate use without the turning of a stop-cock or other adjustment or alteration, and requiring but little presence of mind to put it in operation and maintain it so continuously, thereby, during the panic occasioned by a sudden outbreak of fire, practically in suring against the omission or commission of any act in the handling of the apparatus by excitable persons that would prevent them from operating it instantaneously and effectively; thirdly,t0 provide certain additional details of construction whose utility will be hereinafter specified, and which will be more particularly set forth in the claims.

Referring to the accompanying drawings, illustrative of my invention, Figure 1 represents a central sectional view of the principal parts of my improved extinguisher, certain other parts being shown in elevation. Figs. 2 and 3 are like views showing modifications thereof.

Similar lettersindicate similar parts through out the several views.

A, Fig. 1, indicates a chamber of tubular form, having a conical bottom,O, terminating in a circular opening. Across said opening is fixed a screen, Z, of perforated metal, wire net-work, or the like htving a central opening for the passage of the tube D. The tube 1) extends downwardly into and rests over a stud, Z, upon the bottom of the screen-box G, which is soldered to the edges of the conical bottom 0, forming a continuation thereof. The tube D is slotted at the lower portion, as shown, and extends upwardly through the top of the chamber A, being firmly soldered where it passes through the said top. A small tip, G, having an orifice of small diameter for the exit of the extinguishing-liquid,is attached to the upper extremity of the tube D, and to the tip is attached a ring, H, for suspending the apparatus. An overall-cap, F, is, during shipment of the apparatus, screwed down over the tip and ring to protect the same from injury. In order to suspend the apparatus, however, it is necessary to remove the cap, as there is no other projection exteriorto the chamber A adapted to engage with a sustaining-hook.

I indicates a bent tube attached to the screw cap J, which admits of filling the chamber A through the opening when such cap is removed. It will be noted that the tube I extends first in a line at right angles to the chamber and then has a re-entering bend extending upwardly and downwardly,to thefree endof which the rubber tube D of an aircompressing bulb is detachably connected. This peculiar form of the tube Lwhile it permits the rubber tube to hang freely without bends, which would interfere with the passage of the air, at the same time is not of a shape adapted to be hung upon a hook.

The air-compressing bulb is of the ordinary construction, having a valve at each of its openings-one for admitting air to the bulb and the other for retaining the air forced from the bulb to the chamber under pressure in the latter and preventing its return-whereby the liquid is forced up the small tube D and in a continuous stream through the tip G upon the fire.

In case the rubber ball or bulb should become impaired, the screw-cap J may be quick- 1y removed and the contents of chamber A thrown or poured upon the fire through the opening caused by the removal of the screwcap;

By thus providing an independent screwcap J and bent tube I for filling the chamber A, I am enabled to make a firm-soldered joint between the pipe D and the chamber-top. The danger of leakage,by reason of the swaying of the pipe D during transit, which is occasion of serious inconvenience and loss, where the said pipe is attached to the chamber-top by a screw-thread or like joint, is entirely obviated by my construction. I also avoid the expense of making a cap strong enough to stand the strain of such swaying of pipe D. The stud in the tapering bottom contributes to this latter result by limiting or wholly preventing the swaying motion. It furnishes, moreover, a stay for the tube D, which rests upon it, taking off the strain from the solder-joint. By reason of its converging sides the discharge of allthe liquid upon the fire is secured, although the apparatus may be tipped at a considerable angle in aiming up or down at the fire, and a full stream thus maintained until all the contents are fully discharged.

The strainer Z at the bottom of the chamber prevents small particles of matter that may be accidentally placed in the apparatus from entering and obstructing the orifice in the lip G.

The valve 1) of the bulb prevents the liquid from passing into and injuring it when the apparatus is lying upon its side, and the cap F prevents the liquid from flowing to waste through orifice c in the tip G.

When the apparatus is suspended, evaporation is prevented by plugging the orifice c with a small stopper of substance similar to grease, which, however, is readily blown out by the pressure of the issuing jet of liquid when the apparatus is set in operation.

In Figs. 2 and 3, where the shape or size of the chamber prevents it .from being readily held in the hand, the conical bottom serves as a hand-grasp.

I am aware that prior to my invention fountains of glass and metal have been used in connection with rubber bulbs for spraying and atomizing liquids; and that this class of apparatus, broadly considered, has been used for fireextinguishing purposes. I do not, therefore, claim such a combination of parts, broadly; but

What I claim, and desire to secure by Letters Patent, is-

1. A hand fire-extinguisher having the receptacle A, provided with the tapering bottom 0, the inner tube,D, provided with tip G, the ring H, attached to said tip, and the overall-cap F, fitting over the tip and ring, substantially as shown and described.

2. In a hand fireextinguisher, the combination, with the chamber A, of the tapering bottom piece, 0, the tube D, extending from the base of said piece through the top of the chamber and firmly solderedtherein, and the separate filling-opening J, substantially as shown and described.

3. In a hand fire-extinguisher, the combination, with the chamber A, of the inner tube,D, extending from the base of said chamher and firmly soldered therein, and the stud Z, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

ALONZO W. PORTER.

Witnesses:

WILLIAM FITCH. JOHN G. PENNIE. 

